在 Asp.net C# 中仅将 Gridview 数据导出为 Excel 格式

Question

在我的页面中，我有两个文本框控件，其中我从日历扩展器中选择日期，在导出到 excel 按钮中我要将 Gridview 数据导出到 excel 表。 当我对 excel 表进行门控时，它会显示我从中导出 excel 表的文本框和按钮。

我已经在导出按钮中编写了导出代码。 喜欢：-

    protected void Export_to_Excel_Click(object sender, EventArgs e)
    {
        try
        {

            Response.ClearContent();
            Response.Buffer = true;
            Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "Customers.xls"));
            Response.ContentType = "application/ms-excel";
            StringWriter sw = new StringWriter();
            HtmlTextWriter htw = new HtmlTextWriter(sw);
            Grd_MidData.AllowPaging = false;
            bindgriddata();
            //Change the Header Row back to white color
            Grd_MidData.HeaderRow.Style.Add("background-color", "#FFFFFF");
            //Applying stlye to gridview header cells
            for (int i = 0; i < Grd_MidData.HeaderRow.Cells.Count; i++)
            {
                Grd_MidData.HeaderRow.Cells[i].Style.Add("background-color", "#df5015");
            }
            Grd_MidData.RenderControl(htw);
            Response.Write(sw.ToString());
            Response.Flush();
        }
        catch (Exception ee)
        {

        }
    }

当我对 excel 表进行门控时，它会显示 gridview 数据以及两个文本框和我进行过滤的按钮。

所以任何人都建议我，如何只显示 gridview 数据而不显示 Excel 工作表上的文本框和按钮。

Answer 1

您必须将数据绑定到您的 Excel 代码， 使用下面的代码

    bindgriddata();    
    Response.ClearContent();
    Response.Buffer = true;
    Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", "Customers.xls"));
    Response.ContentType = "application/ms-excel";
    StringWriter sw = new StringWriter();
    HtmlTextWriter ht = new HtmlTextWriter(sw);
    Grd_MidData.RenderControl(ht);
    Response.Write(sw.ToString());
    Response.End();

它对我有用。

Answer 2

这里 gridview 数据与 From date: To Date: 文本框和按钮一起显示。那么如何从工作表中删除这些字段。

Answer 3

您可以使用 close xml 生成 excel，它将提供更多功能来创建 excel 和格式。

protected void Export_to_Excel_Click(object sender, EventArgs e)
{
    bindgriddata();
    Grd_MidData.DataSource = objDS;  // Dataset
    Grd_MidData.DataBind();

    using (XLWorkbook wb = new XLWorkbook())
    {
        try
        {
            //creating worksheet
            var ws = wb.Worksheets.Add("Report");

            //adding columms header
            int columnscount = objDS.Tables[0].Columns.Count;
            char a = 'A';
            for (int j = 1; j <= columnscount; j++)
            {
                string str = a + "1";
                ws.Cell(str).Value = objDS.Tables[0].Columns[j - 1].ColumnName.ToString();
                ws.Cell(str).Style.Border.OutsideBorder = XLBorderStyleValues.Thin;
                a++;
            }
            ws.Columns().AdjustToContents();

            //formatting columns header 
            var rngheaders = ws.Range("A1:J1");
            rngheaders.FirstRow().Style
                .Font.SetBold()
                .Font.SetFontSize(12)
                .Font.SetFontColor(XLColor.Black)
                .Fill.SetBackgroundColor(XLColor.DeepSkyBlue)
                .Alignment.SetHorizontal(XLAlignmentHorizontalValues.Center)
                .Border.OutsideBorder = XLBorderStyleValues.Thin;


            ////adding data to excel
            int k = 2;
            foreach (DataRow row in objDS.Tables[0].Rows)
            {
                char b = 'A';
                string str = b + "" + k;
                for (int i = 0; i < objDS.Tables[0].Columns.Count; i++)
                {
                    ws.Cell(str).Value = row[i].ToString();
                    ws.Cell(str).Style.Border.OutsideBorder = XLBorderStyleValues.Thin;
                    ws.Cell(str).Style.Alignment.SetHorizontal(XLAlignmentHorizontalValues.Left);
                    b++;
                    str = b + "" + k;
                }
                k++;
            }

            Response.Clear();
            Response.Buffer = true;
            Response.Charset = "";
            Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
            Response.AddHeader("content-disposition", "attachment;filename=Customer.xlsx");
        }
        catch { }

        using (MemoryStream MyMemoryStream = new MemoryStream())
        {
            wb.SaveAs(MyMemoryStream);
            MyMemoryStream.WriteTo(Response.OutputStream);
            Response.Flush();
            Response.End();
        }
    }

}

Answer 4

我在导出 GridView 时遇到了同样的问题。我添加了一个 try/catch 并将消息导出到 Excel，然后意识到它正在生成错误。我通过以下答案解决了这个问题：GridView must be placed inside a form tag with runat="server" even after the GridView is within a form tag